I am making a lot of changes to the checkout page. I have been VERY careful in my changes. Making them a bit at a time. Testing and testing and then making more changes. Backing everything up as I go so that I can backout of any changes.
The checkout page is finally beginning to look somewhat the way I have in mind to make it (though it still needs a fair bit of work) but...when I click the checkbox to use a different address for billing purposes, well...a number of my changes are undone.
I would like to prevent that.
While I could chase things down in the code myself that's very time consuming and I am hoping that someone can do me the favor of pointing me to the relevant section of code where things might need to be changed?
And the billing fields are not appearing the way the shipping fields are.
Any advice on how to get around this would be appreciated.